72 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



rf. Depth of body about .~d of length, its width only about .10; length of head 

 .29 of length ; the iuterorbital space about .09 ; ujaxillary, .12 ; mandible, .19; 

 scales moderate, thin, partly imbedded in the skin along the back, but not 

 closely imbricated, in number about 20-lo5-20 ; branchiostegals about 15; 

 dorsal fin rather high — higher than long; adipose tin long and narrow, some- 

 what siiatulate; caudal fin well forked ; general color red, some\. hat spotted 

 above; size small. (Habitat. — Pacific coast streams, Sacramento River to 

 Eraser's River.) kennerlyi." 



The series of Oncorhynchi iu the Kational Museum is by uo means so 

 complete as is desirable, except iu the case of 0. quinnaf aud (). Jcrnucrlyi. 

 0. Jceta, 0. nerha^ and 0. gorhuscha are represented only by skins, mostly 

 dried and moth-eaten, aud all in i)Oor cimdition. A iuller series may 

 show that n)ore thau iive good species exist, or it may show that 0. 

 quinnai is really only a variety of 0. nerla. 



2. SALMO TSUPPITCH Richardson. 



Tsuppitch Salmon. Black Trout of Lake Talioc. 



1836 — Salmo iiuppiich Richari>son, Fauua Bor.-Aiu. Fishes, p. 224. 

 Salmo tuxtppitch DeKay, New York Fauna, Fishes, p. — , 1842. 

 Salmo tftuppitch Storer, Synopsis, p. 197, 1846. 



Salmo tsuppitch Hekuert, Frank Forrester's Fish and Fishing, Suppl. p. 39, 1850 

 Salmo tsuppitch Suckley, Xat. Hist. Wash. Terr. p. 327. 

 Salmo tsuppitch Gl'NTHER, Cat. Fishes Brit. Mus. vi, p. 118, 18(57. 

 Salmo tsuppitch Suckley, Monograph Salmo, p. Ill, 18~4. 

 Salmo tsuppitch Jordan, Man. Vert. ed. 2d, p. 358, 1878. 



A fine specimen of a trout from the Clackamas River enables me to 

 make a i)robably correct determination of the hitherto unidentified Salmo 

 tsuppitch of Eichardson. The specimen seems to be identical with the 

 so called "Black Trout of Lake Tahoe" (not the '^ Silver Trout of Lake 

 Tahoe", which is the species termed by Professor Gill aud myself 

 8. henshaici''^), of which numerous specimens were collected in Lake 

 Tahoe and in Keru River, Califoruia, by Mr. H. W. Henshaw. I feel 

 less hesitation in identilying Richardson's tsuppitcli with this species, 

 from the fact that the fish does not seem ever to have been renamed by 

 later writers. The following description was taken from the Clackamas 

 River specimen. 



General appearance of Salmo Jmishaici, but with smaller scales, 

 smaller, shorter head, and smaller mouth, besides wanting the hyoid 

 teeth. 



Body elongated, somewhat compressed, the dorsal region moderately 

 elevated. Head rather small, pointed and lengthened, its form quite 

 distinctly conic, less convex than in S2nlurus, the top rather narrow 

 and slightly keeled. Mouth moderate, not large, with rather weak 

 teeth, the maxillary comparatively narrow and not extending much 



* Oncorhynchus Icennerlyi (Suckley) Jor. — Salmo kennerlyi, Suckley, 1861. — Uypsifario 

 Jcenncrlyi, Gill. 1864. — Oncorhynchus kennerlyi, Jordan, 1878. 



